"Containing the latest information regarding the rulings of the Federal Radio Commission, radio legislation, Dept. of Commerce regulations, changes in wavelength, call letters and power, patents, exports, Federal Trade Commission rulings and other matters of interest to broadcasters and manufacturers." Some issues accompanied by additional pages on "Patents, patent suits, trade-marks, designs" and by other bulletins. Some issues published in sections; each section sometimes carries its own number. With issue for March 17, 1932, numbering begins again with no. 582. Succeeding title Heinl news service.